This Modify SRI Leg feature modifies outbound messages sent between two network elements, typically a Serving MSC (SMSC) and an MSC.
Description
The Modify SRI Leg feature acts as an intermediary between two network elements, typically an SMSC and MSC. The feature modifies outbound Send Routing Info for SM requests, and/or discards outbound InformSC requests based on configuration. This is primarilly intended for use with the Map Proxy Feature to ensure that outbound SendRoutingInfoForSM messages have SM RP PRI set to true, and to ensure InformSC requests are not proxied.
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The IPSMGW uses the Modify SRI Leg feature in |
Feature cheat sheet
| Feature Name | Network Operator Data | Used in PlanId(s) | Stateful or Stateless | POJO Feature or SBB Feature |
|---|---|---|---|---|
IPSMGWModifySRILeg |
Yes |
SRI4SM |
Stateless |
POJO |
Statistics
IPSMGWModifySRILeg statistics can be found under the following parameter set in REM:
SLEE-Usage → sentinel.ipsmgw service → sentinel.ipsmgw SBB → feature → IPSMGWModifySRILeg
or with rhino-stats:
"SLEE-Usage.Services.ServiceID[name=sentinel.ipsmgw,vendor=OpenCloud,version=4.0.0].SbbID[name=sentinel.ipsmgw,vendor=OpenCloud,version=4.0.0].feature.IPSMGWMapProxy
| Name | Description |
|---|---|
InformSCDiscarded |
Incremented when an outbound InformSC is discarded. |
SMRPPRIForced |
Incremented when an outbound SentRoutingInfoForSM request has the Sm_RP_PRI field forced to true. |
GPRSSupportIndicatorRemoved |
Incremented when an outbound SentRoutingInfoForSM request has the GPRS Support indicator removed. |
Configuration
The feature configuration is in a Profile Table called IPSMGWModifySRILegConfigProfileTable. Entries in the table are indexed by a Sentinel Selection key. The following attributes are available
| Attributes | Type | Meaning |
|---|---|---|
DiscardInformSC |
boolean |
If true, discard outbound InformSC components |
ForceSMRPPRI |
boolean |
If true, force Sm_RP_PRI to be set to true in SendRoutingInfoForSM requests |
In the example below, the IPSMGWModifySRILeg feature is configured so InformSC messages are discarded, but SendRoutingInfoForSM messages are sent unmodified.
Profile Name |
DiscardInformSC |
ForceSMRPPRI |
${platform.operator.name}:::: |
true |
false |
